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All results from a given calculation for CH3F (Methyl fluoride)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-139.034615
Energy at 298.15K-139.037676
HF Energy-139.034615
Nuclear repulsion energy37.789122
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3233 2905 30.53 120.73 0.05 0.09
2 A1 1652 1484 13.40 5.00 0.74 0.85
3 A1 1187 1066 126.25 5.72 0.52 0.69
4 E 3313 2977 60.87 57.47 0.75 0.86
4 E 3313 2977 60.87 57.47 0.75 0.86
5 E 1653 1485 0.77 16.35 0.75 0.86
5 E 1653 1485 0.77 16.35 0.75 0.86
6 E 1312 1179 3.37 6.81 0.75 0.86
6 E 1312 1179 3.37 6.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9314.0 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 8368.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/6-31G*
ABC
5.33438 0.87915 0.87915

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.623
F2 0.000 0.000 0.741
H3 0.000 1.022 -0.977
H4 0.885 -0.511 -0.977
H5 -0.885 -0.511 -0.977

Atom - Atom Distances (Å)
  C1 F2 H3 H4 H5
C11.36451.08181.08181.0818
F21.36451.99941.99941.9994
H31.08181.99941.77081.7708
H41.08181.99941.77081.7708
H51.08181.99941.77081.7708

picture of Methyl fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 H3 109.089 F2 C1 H4 109.089
F2 C1 H5 109.089 H3 C1 H4 109.851
H3 C1 H5 109.851 H4 C1 H5 109.851
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.063      
2 F -0.401      
3 H 0.155      
4 H 0.155      
5 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.989 1.989
CHELPG 0.000 -0.000 -1.999 1.999
AIM        
ESP -0.001 -0.005 -2.001 2.001


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.685 0.000 0.000
y 0.000 -11.685 0.000
z 0.000 0.000 -12.129
Traceless
 xyz
x 0.222 0.000 0.000
y 0.000 0.222 0.000
z 0.000 0.000 -0.443
Polar
3z2-r2-0.887
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.829 0.000 0.000
y 0.000 1.829 0.000
z 0.000 0.000 1.714


<r2> (average value of r2) Å2
<r2> 20.666
(<r2>)1/2 4.546